Prometrium is used for protecting the lining of the uterus in certain women who are also taking estrogen. It is used to treat certain women who have do not have a menstrual period because of decreased progesterone in the body. Prometrium is a hormone. It works by changing the lining of the uterus.

INSTRUCTIONS

Use Prometrium as directed by your doctor.

Take Prometrium by mouth with or without food.

If you miss a dose of Prometrium, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Prometrium.

STORAGE

Store Prometrium at 77 degrees F (25 degrees C) in a tight, light-resistant container. Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Prometrium out of the reach of children and away from pets.

MORE INFO:

Active Ingredient:Progesterone.

Do NOT use Prometrium if:

you are allergic to any ingredient in Prometrium or to peanuts

you have a history of cancer of the breast, ovary, lining of the uterus, cervix, or vagina; vaginal bleeding of unknown cause; blood clots or clotting problems; or liver disease; you have had a recent miscarriage; or you have had a stroke or heart attack within the past year

you are pregnant.

Contact your doctor or health care provider right away if any of these apply to you.

Some medical conditions may interact with Prometrium. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

if you are pregnant, planning to become pregnant, or are breast-feeding

if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement

if you have allergies to medicines, foods, or other substances

if you have heart or blood vessel problems, bleeding problems, high blood pressure, high cholesterol or lipid levels, diabetes, kidney problems, asthma, migraine headaches, or lupus

if you have a history of seizures, depression or other mental or mood problems, cancer, or tobacco use

if you have a family history of blood clots

if you are very overweight.

Some medicines may interact with Prometrium. Tell your health care provider if you are taking any other medicines, especially any of the following:

Rifampin because it may decrease Prometrium's effectiveness.

This may not be a complete list of all interactions that may occur. Ask your health care provider if Prometrium may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

Important safety information:

Prometrium may cause drowsiness, dizziness, blurred vision, or lightheadedness. These effects may be worse if you take it with alcohol or certain medicines. Use Prometrium with caution. Do not drive or perform other possible unsafe tasks until you know how you react to it.

This product has peanut oil in it. Do not take Prometrium if you are allergic to peanuts.

Prometrium may increase your risk of developing blood clots. If you will be having surgery or be confined to a bed or chair for a long period of time (such as a long plane flight), notify your doctor beforehand. Special precautions may be needed in these circumstances while you are taking Prometrium.

Prometrium may interfere with certain lab tests. Be sure your doctor and lab personnel know you are taking Prometrium.

Lab tests, including monthly breast self-exams, yearly breast exams, Pap smears, and pelvic exams, may be performed while you use Prometrium. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.

Prometrium should not be used in children; safety and effectiveness in children have not been confirmed.

Pregnancy and breast-feeding: Do not use Prometrium if you are pregnant unless your doctor tells you otherwise. If you think you may be pregnant, contact your doctor. Prometrium is found in breast milk. If you are or will be breast-feeding while you use Prometrium, check with your doctor. Discuss any possible risks to your baby.

All medicines may cause side effects, but many people have no, or minor, side effects.

Check with your doctor if any of these most common side effects persist or become bothersome: